Sprinkler.



E. R. HAWLEY.

SPRINKLER.

APPLICATION man Aus.15.191e.

Patented Oct. 31, 1916.

Wl TN E SSE S A TTORNEYS EDGAR R. HAWLEY, SALT LAKE CITY, UTAH.

SPRINKLEB..

Specification of Letters Patent.

Application filed August 15, 1916. Serial No. 114,958.

To @ZZ 'whom it may] Concern.

Be it known that I, EDGAR R. HAwLEY, la

citizen of the United States, and a resident.

with a service pipe located beneath the sur.

face of the ground.

Among the objects of the invention is to improve the construction of a sprinkler of the type lndicated, in which the sprinkler head is lifted'automatically by the water when turned on in the service pipe and permitted to gravitateto its closed position when the Water is shut ofi', the sprinkler head serving as a closure for the parts connected to the service pipe.

A further object of the invention is to simplify the device with respect to its ad'- justability.

A still further object is to provide a. sprinkler head having a strainer employed within the same.

'With the above and other objects in view the invention consists in the arrangement and combination of parts hereinafter described and claimed, and while the invention is not restricted to theexact details of construction disclosed or suggested herein, still for the purpose of illustrating a practical embodiment thereof reference is had to the accompanying drawings, in which like reference characters designate the same parts in the several views, and in which- Figure 1 is a vertical sectional view of my improvement in normal closed position; Fig. 2 isa similar view, but indicating the sprinkler head elevated; Fig. 3 is a transvverse Sectional detail on the line 3-3 of Fig. 1; Fig. 4 is a similar view on the line 4-4 of Fig. 2; and Fig. 5 isa detail view in elevation of the spreader.

Referring now more particularly to the drawings, I show at 10 the upper end of a service pipe connection to which is secured a tubular cylindrical shell 11 with its upper end substantially flush with the surface of the ground. This shell is provided adjacent its upper end with an inwardly projecting flange 12 counterbored at its upper surface forming a conical seat 13, intoand upon which the conical spreader 141 of the sprinkler head is adapted to rest when idle. The seat 13 is depressed suliciently to admit -all of the spreader structure below or within the plane of the upper end of the shell, eX- cept the lug 15, to whichl a wrench or other ,tool may be applied for adjusting the head. It will be noted that the flare of the seat 13 corresponds to that of the conical portion of the spreader 14.

The sprinkler head comprises two princi'- palparts relatively adjustable one on the other. These parts consist of a sleeve 16 and the spreader 11, together with the shank connecting the spreader to the sleeve. The sleeve is cylindrical in form throughout its Patented oet. ai, fiere. i

length. except at its lower end where it is provided with an outwardly projecting flange 17. The main portion ofthe sleeve is fitted to slide vertically in the central opening formed through the Hange 12 of the shell, but the upper surface of the flange 17 is ground so as to fit snugly against the correspondingly ground surface 18 of the flange 12 when the head is elevated, making a watertight joint. The interior of the sleeve is screw threaded at 16 for coperation with the split thimble 19, the two parts of vwhich are carried by the spring legs 20 of the shank 21 extending downwardly from the center of the spreader. The thimble is externally threaded to cooperate with the threads 16 of the sleeve, and the legs 20 are such that their inherent tendency is to spread apart, causing the two parts of the thimble to engage with suiiicient'friction upon the inner surface of the sleeve to hold the parts from accidental relative endwise n1o\'ement. The upper end of the-sleeve is provided with a conical seat 22, the inclination, however, of which is less from the vertical than the inclinationof the spreader 14 which coperates with it'to provide-a restricted outlet for the water being distributed. In other words', the two surfaces being differently inclined provide a nozzle like action which serves to increase the effectiveness of the sprinkler in practice.

-At 23 I show a reticulated member constituting a strainer inserted into the lower end of the thimhle '19 and held between the twoV parts thereof. The strainer serves to prevent large particles of sand, gravel or the like from passing outwardly and obstructing the restricted passageway between the upper end of the sleeve and the spreader. The spreader' may easily be removed for any purpose or may e adjusted u J or down in the sleeve by the application o a wrench o1' the like to the lug 15. The sleeve is prevented from rotation in the shell by means of a fin 2a extending into a notch 25 formed in the flange 17 at the lower end of the sleeve.

lVith the structure shown and described herein and arranged as shown in Fig. 1, when the water is turned on inthe service pipe, the head Will be lifted bodily so as to occupy the position shown in Fig. 2. At this time the Water Will be forced upwardly through the sleeve past the legs 20 and spreader shank 2l and out through the restricted regulatable passageway between the spreader and the upper end of the sleeve. The size of this opening will be dependent upon the force of the water, the distance it is tobe projected and the amount of water to be delivered in any given time. `When the water is shut off in the service pipe, the sprinkler head will drop by gravity to the position shown in F ig. l, where it will be a positive closure for the shell l1 and being below the surface of the lawn will permit Manatee? the l'ree passage thereover of the mower or other tralic.

I claim:

In a sprinkler of the character set forth, the combination of a fixed shell having a counter-sunk seat of conical forni at its upper end, a sleeve ot cylindrical torni slidable up and down through said seat and having an outwardlyprojecting flange at its lower end, serving to malte a watertight joint with the seat portion of the shell when the sleeve is elevatech'the interior surface or' the sleeve being screw threaded, and a spreader carried by the sleeve and including a conical upper en d adjustably related to the upper end of the sleeve to vary the water outlet, said spreader also including a split thimble externally threaded to cooperate' with the screw threads of the sleeve, the upper end ot the sleeve being counterbored with a smaller angle of departure from the vertical than the inclination of the spreader cooperating therewith, and a strainer carried by the thimble and serving to prevent coarse particles from entering and clogging the restricted passageway provided between the thimble and the spreader.

EDGAR R. HAWLEY. 

